[ILUG] [OT] fun with esat dns

[Colm Buckley]

On Thu 18 Jul 2002 12:03, you wrote:

> The glue for these has been in place for about three years now.
> This is not something new. The glue for ns.isi.ie & ns.homenet.ie
> has been in place for significantly longer.

That's as may be.  I was merely offering my best guess as to the cause
of the problems which pretty much everyone has been seeing with Esat's
DNS over the past couple of weeks.  If my diagnosis is incorrect, then
I apologise for confusion - however, there *have* been problems
leading to loss of service.

I've been aware of it through the problems of one of our largest
customers, who've been having severe DNS problems - to the extent of
their site being unavailable to many people - for the last month.  I
know that they have reported these problems to Esat only to be told
that there was no problem.

> The current setup is due to an ongoing migration of all zones off
> ns.isi.ie & ns.homenet.ie.

The internal esat nameservers have different NS records for esat.net
to the GTLD servers.  There might be a technical reason for this, but
I think it's a recipe for confusion.

> We are investigating potential problems but have so far found
> none.

I can put my hand on my heart and say that there *have* been problems;
severe ones, which are not caused by issues at the client end; perhaps
some operations related to the move mentioned above were done in a
suboptimal order, or perhaps someone just made a mistake.  I thought
the likely explanation was a lack of glue records; perhaps I was
wrong.  But there was *some* sort of bizarre mismatch going on which
caused brokenness for many of your customers.

"We have always been at war with Eastasia"

         Colm

-- 
Colm Buckley | colm at tuatha.org | +353 87 2469146 | www.colm.buckley.name
Thank you.  We're all refreshed and challenged by your unique point of view.